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Gadomski AM, Aref GH, Hassanien F, el Ghandour S, el-Mougi M, Harrison LH, Khallaf N, Black RE.Gadomski AM, et al.Int J Epidemiol. 1993 Dec;22(6):1166-73. doi: 10.1093/ije/22.6.1166.Int J Epidemiol. 1993.PMID: 8144301
Gadomski AM, Aref GH, el Din OB, el Sawy IH, Khallaf N, Black RE.Gadomski AM, et al.J Pediatr. 1994 Jan;124(1):131-8. doi: 10.1016/s0022-3476(94)70269-1.J Pediatr. 1994.PMID: 8283363Clinical Trial.